Station Monthly Statistics for 2011 -- View Royal Elementary School

How are Monthly Means Calculated?

The table shows values for each month of the selected year in the
database. Values are given in degrees Celsius. Averages shown here
are calculated from daily averages for the month. The value in parentheses
following the monthly mean value is the standard deviation of the daily
averages used to compute the mean. The minimum (maximum) is the average of
the minimum (maximum) temperature observed on each day of the selected month.
Table rows are shown in descending order of Mean value. In some cases the
present month may be incomplete.

The values are plotted so that the minimum and maximum
are marked at the end of the whiskers, the mean value is shown with a
horizontal tick across each box, and the boxes show the range of plus
and minus one standard deviation from the mean value. The average temperature
is shown with a dashed horizontal line and the average extremes are drawn with
dotted lines. The blue curve is a spline that connects the monthly means.